{"api_version":"1","generated_at":"2026-04-23T02:35:27+00:00","cve":"CVE-2020-35499","urls":{"html":"https://cve.report/CVE-2020-35499","api":"https://cve.report/api/cve/CVE-2020-35499.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-35499","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-35499"},"summary":{"title":"CVE-2020-35499","description":"A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.","state":"PUBLIC","assigner":"secalert@redhat.com","published_at":"2021-02-19 20:15:00","updated_at":"2023-07-28 19:37:00"},"problem_types":["CWE-476"],"metrics":[],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1910048","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1910048","refsource":"MISC","tags":["Issue Tracking","Patch","Third Party Advisory"],"title":"1910048 – (CVE-2020-35499) CVE-2020-35499 kernel: NULL pointer dereference in sco_sock_getsockopt function","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-35499","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-35499","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"35499","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"35499","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2020-35499","qid":"900101","title":"CBL-Mariner Linux Security Update for kernel 5.10.52.1"},{"cve":"CVE-2020-35499","qid":"900303","title":"CBL-Mariner Linux Security Update for kernel 5.10.57.1"},{"cve":"CVE-2020-35499","qid":"900321","title":"CBL-Mariner Linux Security Update for kernel 5.10.60.1"},{"cve":"CVE-2020-35499","qid":"901080","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6527-1)"},{"cve":"CVE-2020-35499","qid":"903621","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3900)"},{"cve":"CVE-2020-35499","qid":"905795","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3900-1)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2020-35499","ASSIGNER":"secalert@redhat.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"kernel","version":{"version_data":[{"version_value":"kernel 5.11"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-476"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1910048","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1910048"}]},"description":{"description_data":[{"lang":"eng","value":"A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information."}]}},"nvd":{"publishedDate":"2021-02-19 20:15:00","lastModifiedDate":"2023-07-28 19:37:00","problem_types":["CWE-476"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":6.7,"baseSeverity":"MEDIUM"},"exploitabilityScore":0.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:C/I:C/A:C","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE","baseScore":7.2},"severity":"HIGH","exploitabilityScore":3.9,"impactScore":10,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.10.4","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"35499","Ordinal":"194174","Title":"CVE-2020-35499","CVE":"CVE-2020-35499","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"35499","Ordinal":"1","NoteData":"A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"35499","Ordinal":"2","NoteData":"2021-02-19","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"35499","Ordinal":"3","NoteData":"2021-02-21","Type":"Other","Title":"Modified"}]}}}